ORIGINAL: mr_matt
As long as the moment of inertia does not get crazy high, then combined with some cheezy servo, it beats itself to death taxing around (I have seen that)
Yea, that's one thing you have to keep in mind - mass balancing does reduce some factors in initiating flutter, but it also increases the rotational moment of inertia, which can increase the propensity to flutter if there is any give in the linkage...
Bob